My wife had left a spray can of cooking oil on the counter overnight and there was an oil ring in the quartzite. I thought the counter was reasonable sealed because if something like coffee has gone unnoticed it dries on the surface and wipes away. But the oil overnight did penetrate so I decided to treat it with a poultice of acetone and baking soda, covered with plastic wrap and taped, let sit 24 hrs. I have done a water/baking soda poultice in the past for unknown stains the kids left around but since I knew this was olive oil I went with the acetone. After I wiped it away it has left a light spot on the counter. Perhaps the original sealant dissolved away? Any tips on how to best remedy this?

We had applied stonetech bulletproof to our island (the counters are only 3 years old) last year because it gets a lot of use this but this area has just whatever came from the stone supplier.